Liquid transfer device



FIG. 1 is a rear perspective view of a liquid transfer device;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures show portions of the liquid transfer device that form no part of the claimed design. 

CLAIM We claim, the ornamental design for a liquid transfer device, as shown and described. 